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Annotation of sys/arch/luna88k/dev/sio.c, Revision 1.1.1.1

1.1       nbrk        1: /* $OpenBSD: sio.c,v 1.3 2006/05/08 14:36:08 miod Exp $ */
                      2: /* $NetBSD: sio.c,v 1.1 2000/01/05 08:48:55 nisimura Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2000 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Tohru Nishimura.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *     This product includes software developed by the NetBSD
                     22:  *     Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: /* from NetBSD/luna68k dev/sio.c */
                     41:
                     42: #include <sys/param.h>
                     43: #include <sys/systm.h>
                     44: #include <sys/device.h>
                     45:
                     46: #include <machine/cpu.h>
                     47: #include <machine/autoconf.h>
                     48:
                     49: #include <luna88k/luna88k/isr.h>
                     50: #include <luna88k/dev/siovar.h>
                     51:
                     52: int  sio_match(struct device *, void *, void *);
                     53: void sio_attach(struct device *, struct device *, void *);
                     54: int  sio_print(void *, const char *);
                     55:
                     56: const struct cfattach sio_ca = {
                     57:        sizeof(struct sio_softc), sio_match, sio_attach
                     58: };
                     59:
                     60: struct cfdriver sio_cd = {
                     61:        NULL, "sio", DV_DULL, 0
                     62: };
                     63:
                     64: void nullintr(int);
                     65: int xsiointr(void *);
                     66:
                     67: int
                     68: sio_match(parent, cf, aux)
                     69:        struct device *parent;
                     70:        void *cf, *aux;
                     71: {
                     72:        struct mainbus_attach_args *ma = aux;
                     73:
                     74:        if (strcmp(ma->ma_name, sio_cd.cd_name))
                     75:                return 0;
                     76:        if (badaddr((vaddr_t)ma->ma_addr, 4))
                     77:                return 0;
                     78:        return 1;
                     79: }
                     80:
                     81: void
                     82: sio_attach(parent, self, aux)
                     83:        struct device *parent, *self;
                     84:        void *aux;
                     85: {
                     86:        struct sio_softc *sc = (void *)self;
                     87:        struct mainbus_attach_args *ma = aux;
                     88:        struct sio_attach_args sio_args;
                     89:        int channel;
                     90:        extern int sysconsole; /* console: 0 for ttya, 1 for desktop */
                     91:
                     92:        printf(": 7201a\n");
                     93:
                     94:        sc->scp_ctl = (caddr_t)ma->ma_addr;
                     95:        sc->scp_intr[0] = sc->scp_intr[1] = nullintr;
                     96:        for (channel = 0; channel < 2; channel++) {
                     97:                sio_args.channel = channel;
                     98:                sio_args.hwflags = (channel == sysconsole);
                     99:                config_found(self, (void *)&sio_args, sio_print);
                    100:        }
                    101:
                    102:        isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF,
                    103:            self->dv_xname);
                    104: }
                    105:
                    106: int
                    107: sio_print(aux, name)
                    108:        void *aux;
                    109:        const char *name;
                    110: {
                    111:        struct sio_attach_args *args = aux;
                    112:
                    113:        if (name != NULL)
                    114:                printf("%s: ", name);
                    115:
                    116:        if (args->channel != -1)
                    117:                printf(" channel %d", args->channel);
                    118:
                    119:        return UNCONF;
                    120: }
                    121:
                    122: int
                    123: xsiointr(arg)
                    124:        void *arg;
                    125: {
                    126:        struct sio_softc *sc = arg;
                    127:
                    128:        (*sc->scp_intr[0])(0);  /* 0: ttya system serial port */
                    129:        (*sc->scp_intr[1])(1);  /* 1: keyboard and mouse */
                    130:        return 1;
                    131: }
                    132:
                    133: void nullintr(v)
                    134:        int v;
                    135: {
                    136: }